Hayden Nierman P Aberdeen IronBirds
Age 27 RHP 6'2" / 170 lbs A+
2027 FULL-SEASON PROJECTION0 act + 7 ip · rates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 122114vR 105
ERA4.66
FIP4.66
K%22.2%
BB%11.2%
K-BB%11.0%
ROS IP7
Value2026 · WAR
Runs saved vs league avg · 7 IP
K: -0.0 runs (Runs saved by strikeouts vs lg-avg K%)-0KBB: -0.2 runs (Runs saved by walk suppression vs lg-avg BB%)-0BBCONTACT: -0.2 runs (Runs saved on contact quality (HR suppression) vs lg)-0CONTACTSTAM: +0.3 runs (Replacement credit for innings volume)+0STAMTotal WAR: -0.01 (7 IP)-0.0WAR
0.00.02728
Grades · Contract
Scouting Grades
K†5555

Contract

No contract data on file. Pre-MLB players and minor-league free agents do not yet have salary projections — entries are added at first 40-man roster placement.

Career Stats + Projections

Real MLB stats plus park-adjusted projections — this season (so far / rest / full), then future seasons and career totals.
basis chips: RAW = as recorded · CTX = with park/league context · A+C = actual + context combined · MLE = level/park-neutral
Methodology▸ how WAR & MLE are computed

Stats are park-neutral MLB equivalents. The "TEAM" column shows current org affiliation only — we do NOT project at that team's park.
Rates (K%, BB%, HR-BF) are park-stripped; MiLB stat lines are translated to their MLB-equivalent via per-level MLE factors.
WAR is computed from projected runs prevented vs a replacement pitcher (the marginal arm a team would call up if this pitcher were unavailable) — calibrated to industry-standard fWAR.

YearAge LvlTeam GGSIPBF KBBHR GS%IP/G K%BB%K-BB%HR% ERAFIP WAR
▸ Career — actual stats, one row per year (as recorded, no adjustments)
▸ Career — adjusted (each season translated to a park/league-neutral MLB-equivalent line; levels combined per year)
▸ Model inputs — neutral MLE (past 3 seasons + 2027 so far)
202222MIX MLE2 levels20263100%1.050.0%16.7%33.3%0.0%0.000.99—
202222MIX RAW2 levels20263100%1.050.0%16.7%33.3%0.0%0.001.60—
202323MIX MLE2 levels150114613400%0.828.3%8.7%19.6%0.0%4.761.81—
202323MIX RAW2 levels150114613400%0.828.3%8.7%19.6%0.0%4.761.86—
202424MIX MLE3 levels19023110271500%1.212.4%20.4%-8.0%0.0%3.914.64—
202424MIX MLE3 levels19023110271500%1.212.4%20.4%-8.0%0.0%3.914.64—
202424MIX RAW3 levels19023110271500%1.224.5%13.6%10.9%0.0%3.912.71—
202525A+ MLEAberdeen IronBirds808404610%1.010.0%15.0%-5.0%2.5%7.885.53—
202525A+ MLEAberdeen IronBirds808404610%1.010.0%15.0%-5.0%2.5%7.885.53—
202525A+ RAWAberdeen IronBirds808404610%1.010.0%15.0%-5.0%2.5%7.885.97—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202727MLBBAL707307310%1.022.2%11.2%11.0%3.0%4.664.66-0.0
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202828MLB MLEBAL190208419930%1.122.2%11.2%11.0%3.1%4.674.71-0.0
202828MLB CTXBAL707307310%1.022.2%11.2%11.0%3.1%4.674.71-0.0
▸ Career totals — MLB only (actual + projected)
Career— RAW707317310%1.022.2%11.2%11.0%3.1%4.674.33+0.0
/ 200 IP— RAW190020084419182270%1.122.2%11.2%11.0%3.1%4.674.33+0.5
Career— MLE44044202343310%1.016.7%16.6%0.1%0.5%4.674.06-0.0
/ 200 IP— MLE198020091115215150%1.016.7%16.6%0.1%0.5%4.674.06-0.4